CN107235649B - A kind of cement grinding aid and preparation method thereof - Google Patents
A kind of cement grinding aid and preparation method thereof Download PDFInfo
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- CN107235649B CN107235649B CN201710349755.6A CN201710349755A CN107235649B CN 107235649 B CN107235649 B CN 107235649B CN 201710349755 A CN201710349755 A CN 201710349755A CN 107235649 B CN107235649 B CN 107235649B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a kind of cement grinding aid, the proportion of raw material and each component is as follows: 50~70 parts of modified triethanolamine aqueous solution, 5~25 parts of alcamine compound, 5~25 parts of molasses, 5~20 parts of alcohol compound.Cement grinding aid of the invention not only improves mill efficiency, while improving cement early anaphase intensity, can consume less triethanolamine, and then reduce the production cost of grinding aid, make it easier for promoting and applying.
Description
Technical field
The present invention relates to a kind of cement grinding aid and preparation method thereof, in particular to a kind of modified through graphene oxide
Cement grinding aid and preparation method thereof.
Background technique
Grinding aid is a kind of surface reactive material added in cement pulverizing course, and one side rises in cement grinding
Disperse grind -aiding effect, on the other hand, the process of hydrated cementitious is influenced in hydrated cementitious, can promote or delay hydrated cementitious
Trend improves the density of cement matrix.Using cement grinding aid, cement grinding efficiency and unit-hour output can be improved, reduce water
Mud grinding pow consumption and improvement cement products performance are advantageously implemented low-carbon, circular economy production, cement industry energy conservation are accelerated to subtract
It arranges, the process of the green revolution.
Cement grinding aid mainly has two class of liquid and solid, either liquid grinding aid or powder grinding aid, predominantly
Amine, alcohols, alcamines, lignin sulfonate, fatty acid and its esters, alkyl sulfonates etc..Specific substance are as follows: three second
Hydramine, triisopropanolamine, ethylene glycol, lignosulfonates, formic acid, stearic acid, oleic acid, neopelex etc..At present
The most widely used chemical monomer is the alcohols such as triethanolamine, diethylene glycol (DEG) and hydramine type organic.Triethanolamine be polarity very
Strong hydramine, aqueous solution in alkalinity, can metal ion in chelating cement and minerals interact, be used as concrete in early days
Early strength agent uses, and can soon improve cement early strength, but later strength can be made to be declined.Triethanolamine is as cement
Grinding aid is usually used in compounding with polyalcohol, has good grinding-aid effect to cement grinding, with most commonly used chemical monomer, but
Triethanolamine price is higher, so that triethanolamine series cement grinding aid higher cost.Application No. is 201510802875.8 hairs
Bright patent discloses a kind of cement grinding aid, is made of modified triethanolamine, molasses, lignin derivative, chlorohydrocarbon and water.Though
The right invention is acted on using modified triethanolamine and chlorohydrocarbon, promotes grinding aid and reinforcing effect.But the preparation process of the technology is multiple
It is miscellaneous, it is at high cost to be unfavorable for practical application.
Summary of the invention
It is an object of the invention to for current cement grinding aid higher cost, later strength is weaker, allocation process
The technological deficiencies such as very complicated trouble provide a kind of cement grinding aid of graphene oxide modified triethanolamine preparation；
It is a further object of the present invention to provide the preparation methods of above-mentioned grinding aid.
The purpose of the present invention is achieved by the following technical scheme:
The proportion of a kind of cement grinding aid, raw material and each component is as follows:
50~70 parts of modified triethanolamine aqueous solution, 5~25 parts of alcamine compound, 5~25 parts of molasses, alcohol compound
5~20 parts.
Preferably, the proportion of above-mentioned cement grinding aid, each raw material and each component is as follows:
55~65 parts of modified triethanolamine aqueous solution, 10~20 parts of alcamine compound, 10~20 parts of molasses, alcohols chemical combination
10~15 parts of object.
As preferred plan, above-mentioned cement grinding aid, it is characterised in that: the proportion of its raw material and each component is as follows:
60 parts of modified triethanolamine aqueous solution, 15 parts of alcamine compound, 15 parts of molasses, 10 parts of alcohol compound.
Preferably, the alcamine compound is selected in diethanol monoisopropanolamine, triisopropanolamine or diethanol amine
One or more combinations, preferably diethanol monoisopropanolamine.
Preferably, the molasses select one of beet molasses, cane molasses or grape molasses or multiple combinations, preferably
Beet molasses.
Preferably, the modified triethanolamine aqueous solution is prepared by the following method:
Prepare the graphene oxide suspension that mass fraction is 0.2%；
Under stirring condition, triethanolamine is added dropwise into graphene oxide suspension, reacts 30min~120min, can obtain
To modified triethanolamine aqueous solution.The time of reaction can for 30min, 35min, 40min, 45min, 50min, 60min,
65min, 70min, 80min, 85min, 90min, 95min, 100min, 105min, 110min, 115min, 120min, etc..
Reaction time is preferably 45min.
Preferably, the one aspect of the above method, the stirring rate are 800rmp~1500rmp, such as: 800rmp,
900rmp, 1000rmp, 1100rmp, 1200rmp, 1300rmp, 1400rmp, 1500rmp, etc.；Preferably 1000rmp.
Preferably, the one aspect of the above method, drop rate 10ml/min.
Preferably, the one aspect of the above method, the reaction temperature control is 60 DEG C~100 DEG C, such as: 60 DEG C, 65
DEG C, 70 DEG C, 72 DEG C, 75 DEG C, 80 DEG C, 85 DEG C, 88 DEG C, 90 DEG C, 91 DEG C, 95 DEG C, 97 DEG C, 100 DEG C, etc.；Preferably 80 DEG C.
Preferably, the one aspect of the above method, graphene oxide suspension: the mass ratio of triethanolamine is (2~5):
1, such as: 2:1,2.2:1,2.5:1,2.7:1,3:1,3.5:1,3.8:1,4:1,4.3:1,4.5:1,4.8:1,5:1；It is preferred that 3:
1。
Preferably, the preparation method of the graphene oxide suspension are as follows: graphene oxide is soluble in water, it stirs evenly
Ultrasonic disperse 30min~90min afterwards.
Preferably, the alcohol compound selects one of ethylene glycol, propylene glycol, glycerine or diethylene glycol (DEG) or a variety of groups
It closes, preferably ethylene glycol.
Modified three second are added in alcamine compound, molasses, alcohol compound by the preparation method of above-mentioned cement grinding aid
It in aqueous alkanolamine, stirs evenly, cement grinding aid of the present invention can be obtained；
Preferably, the stirring rate of the stirring be 500rmp~1000rmp, such as: 500rmp, 550rmp, 600rmp,
630rmp, 700rmp, 770rmp, 800rmp, 850rmp, 900rmp, 920rmp, 950rmp, 1000rmp, etc.；It is preferred that
1000rmp。
The invention firstly uses graphene oxides to react with triethanolamine and prepares modified triethanolamine aqueous solution, then with other
Raw material is mixed to get new and effective grinding aid according to the ratio.Under the premise of grinding process condition is constant, which can be improved object
The flowability of material prevents particle in the adherency on abrasive media and lining board of grinder and the reunion between particle, reduces particle
Intensity and hardness, while promoting the extension of crackle, accelerate the grinding speed of material, improve mill efficiency.It not only can be with
Grinding phenomenon was not generated, improves mill efficiency, and was conducive to improve the quality (specific surface area) and early anaphase of ground prod
Intensity (see Table 1 for details) can improve the performance of cement to achieve the purpose that reduce manufacture of cement cost again.
Compared with prior art, the present invention has the advantage that
1, obvious using the simple grinding-aid effect of preparation process of graphene oxide modified triethanolamine in the present invention.Modified three
Ethanol amine maintains the original property of triethanolamine, and because of the graphene oxide of introducing, large specific surface area, oxygen-containing functional group
More, especially carboxyl functional group can be adsorbed between cement molecule, increase the space resistance between cement molecule, be reduced
Electrostatic force between grain neutralizes cement surface free charge and unsaturated valence link, prevents finished ground cement from reuniting, and when grinding platform produces
Amount and cement quality get a promotion, while can effectively reduce grinding phenomenon, optimize cement granules gradation.
2, cement grinding aid of the invention not only improves mill efficiency, while improving cement early anaphase intensity, can consume
Less triethanolamine, and then the production cost of grinding aid is reduced, it makes it easier for promoting and applying.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Following embodiment emphasis changes from proportionate relationship different between each component, the variation of component materials, is modified three second
The multilayers such as different proportion relationship, reaction temperature and reaction time of graphene oxide suspension and triethanolamine in aqueous alkanolamine
The illustration in face.Wherein, embodiment 6 is most preferred embodiment.Additionally provide three comparative examples.And to grinding aid performance detection
The test compared.It is specific as follows.
Embodiment 1:
It weighs 20g graphene oxide to be added in 10L water, graphene oxide is dissolved in water ultrasonic disperse 30min after mixing evenly
Obtain graphene oxide suspension.5kg graphene oxide suspension is weighed, is 60 DEG C in temperature, speed of agitator is 800rpm's
Under the conditions of be slowly added dropwise triethanolamine 1kg, drop rate 10ml/min, react 30min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 5kg, diethanol monoisopropanolamine 1.5kg, beet molasses 2kg, ethylene glycol 1.5kg are weighed, is stirred
It mixes and modified three ethyl alcohol is added in diethanol monoisopropanolamine, beet molasses, glycol compound under conditions of revolving speed is 800rpm
It is stirred evenly in amine aqueous solution.
Embodiment 2:
It weighs 40g graphene oxide to be added in 20L water, graphene oxide is dissolved in water ultrasonic disperse 30min after mixing evenly
Obtain graphene oxide suspension.10kg graphene oxide suspension is weighed, is 60 DEG C in temperature, speed of agitator is 800rpm's
Under the conditions of be slowly added dropwise triethanolamine 5kg, drop rate 10ml/min, react 30min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 10kg, diethanol monoisopropanolamine 3kg, beet molasses 4kg, ethylene glycol 3kg are weighed, is stirred
Revolving speed be 800rpm under conditions of by diethanol monoisopropanolamine, beet molasses, glycol compound be added modified triethanolamine
It is stirred evenly in aqueous solution
Embodiment 3
It weighs 40g graphene oxide to be added in 20L water, graphene oxide is dissolved in water ultrasonic disperse 30min after mixing evenly
Obtain graphene oxide suspension.9kg graphene oxide suspension is weighed, is 60 DEG C in temperature, speed of agitator is 800rpm's
Under the conditions of be slowly added dropwise triethanolamine 3kg, drop rate 10ml/min, react 30min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 10kg, diethanol monoisopropanolamine 3kg, beet molasses 4kg, ethylene glycol 3kg are weighed, is stirred
Revolving speed be 800rpm under conditions of by diethanol monoisopropanolamine, beet molasses, glycol compound be added modified triethanolamine
It is stirred evenly in aqueous solution.
Embodiment 4:
It weighs 40g graphene oxide to be added in 20L water, graphene oxide is dissolved in water ultrasonic disperse 45min after mixing evenly
Obtain graphene oxide suspension.9kg graphene oxide suspension is weighed, is 100 DEG C in temperature, speed of agitator 1500rpm
Under conditions of be slowly added dropwise triethanolamine 3kg, drop rate 10ml/min, react 120min, obtain modified triethanolamine water
Solution.Modified triethanolamine aqueous solution 10kg, diethanol monoisopropanolamine 3kg, beet molasses 4kg, ethylene glycol 3kg are weighed, is stirred
It mixes and modified three ethyl alcohol is added in diethanol monoisopropanolamine, beet molasses, glycol compound under conditions of revolving speed is 800rpm
It is stirred evenly in amine aqueous solution.
Embodiment 5:
It weighs 20g graphene oxide to be added in 10L water, graphene oxide is dissolved in water ultrasonic disperse 30min after mixing evenly
Obtain graphene oxide suspension.6kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator is 800rpm's
Under the conditions of be slowly added dropwise triethanolamine 2kg, drop rate 10ml/min, react 90min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 5kg, diethanol monoisopropanolamine 1.5kg, beet molasses 2kg, ethylene glycol 1.5kg are weighed, is stirred
It mixes and modified three ethyl alcohol is added in diethanol monoisopropanolamine, beet molasses, glycol compound under conditions of revolving speed is 800rpm
It is stirred evenly in amine aqueous solution.
Embodiment 6: most preferred embodiment
It weighs 25g graphene oxide to be added in 12.5L water, graphene oxide is dissolved in water ultrasonic disperse after mixing evenly
60min obtains graphene oxide suspension.9kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator is
Triethanolamine 3kg, drop rate 10ml/min are slowly added dropwise under conditions of 1000rpm, reacts 45min, obtains modified three second
Aqueous alkanolamine.Weigh modified triethanolamine aqueous solution 6kg, diethanol monoisopropanolamine 1.5kg, beet molasses 1.5kg, second two
Alcohol 1kg, speed of agitator change diethanol monoisopropanolamine, beet molasses, glycol compound addition under conditions of being 1000rpm
It is stirred evenly in property triethanolamine aqueous solution.
Embodiment 7:
It weighs 50g graphene oxide to be added in 25L water, graphene oxide is dissolved in water ultrasonic disperse 60min after mixing evenly
Obtain graphene oxide suspension.15kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator 1000rpm
Under conditions of be slowly added dropwise triethanolamine 5kg, drop rate 10ml/min, react 45min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 14kg, diethanol monoisopropanolamine 1kg, beet molasses 1.5kg, ethylene glycol 1.5kg are weighed,
Diethanol monoisopropanolamine, beet molasses, glycol compound are added under conditions of being 1000rpm and are modified three second by speed of agitator
It is stirred evenly in aqueous alkanolamine.
Embodiment 8:
It weighs 20g graphene oxide to be added in 10L water, graphene oxide is dissolved in water ultrasonic disperse 60min after mixing evenly
Obtain graphene oxide suspension.6kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator is 1000rpm's
Under the conditions of be slowly added dropwise triethanolamine 2kg, drop rate 10ml/min, react 45min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 5kg, diethanol monoisopropanolamine 2.5kg, beet molasses 0.5kg, ethylene glycol 2kg are weighed, is stirred
It mixes and modified three ethyl alcohol is added in diethanol monoisopropanolamine, beet molasses, glycol compound under conditions of revolving speed is 1000rpm
It is stirred evenly in amine aqueous solution.
Embodiment 9:
It weighs 25g graphene oxide to be added in 12.5L water, graphene oxide is dissolved in water ultrasonic disperse after mixing evenly
60min obtains graphene oxide suspension.9kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator is
Triethanolamine 3kg, drop rate 10ml/min are slowly added dropwise under conditions of 1000rpm, reacts 45min, obtains modified three second
Aqueous alkanolamine.Weigh modified triethanolamine aqueous solution 6kg, diethanol monoisopropanolamine 1.5kg, beet molasses 1.5kg, second two
Alcohol 1kg, speed of agitator change diethanol monoisopropanolamine, beet molasses, glycol compound addition under conditions of being 1000rpm
It is stirred evenly in property triethanolamine aqueous solution.
Embodiment 10:
It weighs 50g graphene oxide to be added in 25L water, graphene oxide is dissolved in water ultrasonic disperse 60min after mixing evenly
Obtain graphene oxide suspension.15kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator 1000rpm
Under conditions of be slowly added dropwise triethanolamine 5kg, drop rate 10ml/min, react 45min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 14kg, triisopropanolamine 1kg, cane molasses 1.5kg, glycerine 1.5kg are weighed, stirring turns
Triisopropanolamine, cane molasses, glycerine compound are added in modified triethanolamine aqueous solution under conditions of being 1000rpm for speed
It stirs evenly.
Embodiment 11:
It weighs 50g graphene oxide to be added in 25L water, graphene oxide is dissolved in water ultrasonic disperse 60min after mixing evenly
Obtain graphene oxide suspension.15kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator 1000rpm
Under conditions of be slowly added dropwise triethanolamine 5kg, drop rate 10ml/min, react 45min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 14kg, diethanol amine 1kg, glucose sugar molasses 1.5kg, propylene glycol 1.5kg are weighed, stirring turns
Diethanol amine, grape molasses, propylene glycol compound are added in modified triethanolamine aqueous solution and are stirred under conditions of being 1000rpm by speed
It mixes uniformly.
Embodiment 12:
It weighs 50g graphene oxide to be added in 25L water, graphene oxide is dissolved in water ultrasonic disperse 60min after mixing evenly
Obtain graphene oxide suspension.15kg graphene oxide suspension is weighed, is 80 DEG C in temperature, speed of agitator 1000rpm
Under conditions of be slowly added dropwise triethanolamine 5kg, drop rate 10ml/min, react 45min, it is water-soluble to obtain modified triethanolamine
Liquid.Modified triethanolamine aqueous solution 14kg, triisopropanolamine 1kg, cane molasses 1.5kg, diethylene glycol (DEG) 1.5kg are weighed, stirring turns
Triisopropanolamine, cane molasses, diethylene glycol (DEG) compound are added in modified triethanolamine aqueous solution under conditions of being 1000rpm for speed
It stirs evenly.
Comparative example 1:
Water 18kg, triethanolamine 6kg, diethanol monoisopropanolamine 6kg, beet molasses 6kg, ethylene glycol 4kg are weighed, is stirred
Under conditions of revolving speed is 1000rpm, water, triethanolamine, diethanol monoisopropanolamine, beet molasses and ethylene glycol are stirred evenly
?.
Comparative example 2:
Water 18kg, triethanolamine 6kg, triisopropanolamine 6kg, cane molasses 6kg, diethylene glycol (DEG) 4kg are weighed, speed of agitator is
Under conditions of 1000rpm, water, triethanolamine, triisopropanolamine, cane molasses and diethylene glycol (DEG) are stirred evenly.
Comparative example 3:
Water 18kg, triethanolamine 6kg, diethanol amine 6kg, glucose sugar molasses 6kg, propylene glycol 4kg are weighed, speed of agitator is
Under conditions of 1000rpm, water, triethanolamine, diethanol amine, glucose sugar molasses, propylene glycol are stirred evenly.
Grinding aid experiment
The small mill test of cement is carried out, the formula of cement raw material is (mixed by mass percentage): clinker 65.0%, stone
Cream 5.0%, lime stone 20.0%, slag 10%.By clinker be put into crusher be crushed after and gypsum, lime stone, drying mine
Slag is mixed together grinding, and before grinding mixture, the grinding aid of embodiment 1~12 and comparative example 1~3 is added drop-wise to mixture
In, additive amount 0.1%；In grinding process, keep grinding time consistent；Sieve after grinding using 0.8mm is to powder
Bulk properties and cement performance are tested, and the size distribution of cement is detected using laser particle size analyzer.Test result is such as
Shown in table 1:
1 cement grinding aid test result of table
From upper table test result analysis it is found that relative to unmodified triethanolamine is added, addition graphene oxide is modified
The grinding aid of triethanolamine preparation, compared to comparative example, the grinding-aid effects such as 3,28 days pressure-proof and snap-resistent intensity and specific surface area
Characterize data on all have better effect.By experimental data as it can be seen that addition 0.1% cement grinding aid cement, 3 day age and
4.07MPa, 9.96MPa is respectively increased in 28 day age compression strength, and the age flexural strength of 3 day age and 28 day is respectively increased
1.75MPa, 1.36Mpa, specific surface area promote 50m2/kg。
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (21)
1. a kind of cement grinding aid, it is characterised in that: the proportion of its raw material and each component is as follows:
50~70 parts of modified triethanolamine aqueous solution, 5~25 parts of alcamine compound, 5~25 parts of molasses, alcohol compound 5~
20 parts；
The modified triethanolamine aqueous solution is prepared by the following method:
Prepare the graphene oxide suspension that mass fraction is 0.2%；
Under stirring condition, triethanolamine is added dropwise into graphene oxide suspension, reacts 30min~120min, can be obtained and change
Property triethanolamine aqueous solution.
2. cement grinding aid according to claim 1, it is characterised in that: the proportion of each raw material and each component is as follows:
55~65 parts of modified triethanolamine aqueous solution, 10~20 parts of alcamine compound, 10~20 parts of molasses, alcohol compound 10
~15 parts.
3. cement grinding aid according to claim 2, it is characterised in that: the proportion of its raw material and each component is as follows:
60 parts of modified triethanolamine aqueous solution, 15 parts of alcamine compound, 15 parts of molasses, 10 parts of alcohol compound.
4. described in any item cement grinding aids according to claim 1~3, it is characterised in that: the alcamine compound is selected
One of diethanol monoisopropanolamine, triisopropanolamine or diethanol amine or multiple combinations.
5. cement grinding aid according to claim 4, it is characterised in that: the alcamine compound is diethanol list isopropyl
Hydramine.
6. described in any item cement grinding aids according to claim 1~3, it is characterised in that: the molasses selection beet molasses,
One of cane molasses or grape molasses or multiple combinations.
7. cement grinding aid according to claim 6, it is characterised in that: the molasses are beet molasses.
8. cement grinding aid according to claim 1, it is characterised in that: the stirring rate is 800rmp~1500rmp.
9. cement grinding aid according to claim 8, it is characterised in that: the stirring rate is 1000rmp.
10. cement grinding aid according to claim 1, it is characterised in that: control reaction temperature is 60 DEG C~100 DEG C.
11. cement grinding aid according to claim 10, it is characterised in that: control reaction temperature is 80 DEG C.
12. cement grinding aid according to claim 1, it is characterised in that: reaction time 45min.
13. cement grinding aid according to claim 12, it is characterised in that: the drop rate is 10ml/min.
14. cement grinding aid according to claim 1, it is characterised in that: graphene oxide suspension: the matter of triethanolamine
Amount is than being (2~5): 1.
15. cement grinding aid according to claim 14, it is characterised in that: graphene oxide suspension: triethanolamine
Mass ratio is 3:1.
16. cement grinding aid according to claim 1, it is characterised in that: the preparation side of the graphene oxide suspension
Method are as follows: graphene oxide is soluble in water, ultrasonic disperse 30min~90min after mixing evenly.
17. described in any item cement grinding aids according to claim 1~3, it is characterised in that: the alcohol compound selects second
One of glycol, propylene glycol, glycerine or diethylene glycol (DEG) or multiple combinations.
18. cement grinding aid according to claim 17, it is characterised in that: the alcohol compound is ethylene glycol.
19. the preparation method of described in any item cement grinding aids according to claim 1~18, it is characterised in that: by alcamines
Compound, molasses, alcohol compound are added in modified triethanolamine aqueous solution, stir evenly, cement grinding aid can be obtained.
20. the preparation method of cement grinding aid according to claim 19, it is characterised in that: the stirring rate of the stirring
For 500rmp~1000rmp.
21. the preparation method of cement grinding aid according to claim 20, it is characterised in that: the stirring rate of the stirring
For 1000rmp.
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| CN108911554B (en) * | 2018-07-13 | 2021-03-26 | 桂林华越环保科技有限公司 | Grinding aid special for high-strength cement with grade of 52.5 and above and preparation method thereof |
| CN108940553B (en) * | 2018-07-19 | 2020-06-09 | 迁西福珍全矿业有限公司 | Grinding aid special for ore crushing |
| CN110327841A (en) * | 2019-07-04 | 2019-10-15 | 湖南格林朗科技有限公司 | A kind of novel generation hydroxyl alcamines surfactant and its preparation method and application |
| CN110330253B (en) * | 2019-07-25 | 2021-11-09 | 宜兴市国顺环保新材料科技有限公司 | Grinding aid formula |
| CN110304856B (en) * | 2019-07-25 | 2021-11-09 | 宜兴市国顺环保新材料科技有限公司 | Preparation process of grinding aid |
| CN112456850A (en) * | 2020-12-12 | 2021-03-09 | 绍兴鼎峰水泥有限公司 | Cement grinding aid for enhancing yield increase |
| CN114763294B (en) * | 2021-05-31 | 2023-03-14 | 辽宁天宝华瑞建材有限公司 | Raw material vertical grinding aid and preparation method thereof |
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| CN106380110B (en) * | 2016-09-05 | 2018-06-26 | 济南大学 | A kind of graphene oxide is modified cement grinding aid and preparation method thereof |
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